BEIJING, Nov. 8 -- Talk about a hotel nightmare.

A viral bed bug tracking app in China has flagged more than 600 hotels, leaving some establishments itching to clear their names over disputed infestation claims.

The crowdsourced platform has attracted more than 200,000 users since its September 21 launch, allowing travellers to flag hotels where they claim to have encountered the bloodsucking pests.

But there's a catch: Until recently, users could slap a warning on a hotel with a single click, without providing any photographic evidence.

Unsurprisingly, that has ruffled a few bedsheets.

According to the South China Morning Post (SCMP), several hotels have challenged their listings, claiming they were unfairly branded as bed bug hotsp...